ProLogium has begun mass production of a solid-state battery at its Giga-level facility in Taiwan, with an energy density of 381 Wh/kg.
    • boonhet@sopuli.xyzEnglish
      9·
      6 days ago

      Or car batteries. EVs are still heavier than ICE vehicles and road wear goes up by what was it, the 4th power of axle weight? Even at the exact same capacity per volume, an increased capacity per weight is a huge advantage. Not to mention that the car itself needs to have beefier suspension, tires and brakes for more weight (even though yes, on the braking side, EVs get regen braking - they still need to be able to stop quickly if something happens to the drivetrain). Also no danger of battery fires.

      If this works out AND charge/discharge rates are good AND production scales fast enough, this could be huge in a few years. Of course it might also not be.

      The incredibly unbelieveable smells-like-bullshit donut battery hit an even higher Wh/kg (not by much) in the new VTT test, but there’s still no guarantee that every test’s been on the same type of cell. Current leading theory is that they’re just taking a bunch of completely different cells to be tested and the solid state one might not be the same one that did all the other tests.

        • DrunkenDuckling@lemmus.orgEnglish
          1·
          5 days ago

          Ultimately yes. People easily get confused between power density (power per volume), energy density(energy per volume), specific energy(energy per mass unit) and specific power(power per mass unit)

        • rain_enjoyer@sopuli.xyzEnglish
          2·
          5 days ago

          that’s energy density, maybe you can only discharge it only over 20h without damaging it or something (probably not but there are so many places where things fail). power density was not reported there